Getting files from old hard drive (help)?

I have a Lenovo G580 with windows 8.1 on it. The computer failed to boot up yesterday and it said something like boot failure. I guess the PC is not reading the hard drive. I took the hard drive out and installed it into my old Fujitsu A3210 and Fujitsu is windows vista. Anyway I was able to put the hard drive in the Fujitsu and when I turn it on I can go to BIOS and stuff. So what is my next step here? How can I be able to get to the desktop to see my files? I did the diagnostic thing and it ran and rebooted and it says "initial diagnostic test completed successfully. Bios continues full diagnostic test. Hit any key to continue." Once I hit any key it brings me to a black page with nothing on it. So should I go into BIOS to change boot order or something or how can I get to the log in screen to access my desktop?

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